JP2011246227A - Method of installing elevator car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of installing an elevator car in a short construction period, without handling a robust stand.SOLUTION: The method includes: a shaft installation step for installing a shaft 5 in a structure 3; a car assembling step for assembling the car 11; a lifting device installation step for installing a lifting device 33 for inserting the car in the shaft at a construction site; and a car installation step for inserting the assembled car in the shaft. The shaft providing step and the car assembling step are performed in parallel. The car assembling step is performed at the construction site. In the car assembling step, a temporary guide rail is arranged on the ground of the construction site and thereafter, the car is assembled depending on the temporary guide rail. In the car installation step, the assembled car is lifted up by the lifting device to be pulled out from the temporary guide rail, after completion of the car assembling step, and is suspended so as to be inserted into the shaft.

Description

  The present invention relates to an elevator car installation method.

  The elevator includes a car that moves up and down in a hoistway that extends vertically. Usually, after a hoistway is almost completed in a structure, a car carries parts into the hoistway, is gradually assembled in the hoistway, and is finally installed in the hoistway.

  On the other hand, in order to meet the recent demand for shortening the construction period, there is also a construction method in which the assembly work of the car is advanced in the factory in parallel with the installation work of the hoistway. In this method, as the hoistway is completed, the assembled car is transported from the factory to the structure site, and the car is installed in the hoistway without delay. That is, the car assembly work was started without waiting for completion of the hoistway, and the work period could be shortened by performing the hoistway installation work and the car assembling work in parallel.

  In the construction method described above, it was necessary to take measures to protect the car when the car assembled with high precision at the factory was transported to the site. Therefore, a car assembly base as exemplified in Patent Document 1 has been devised. This gantry is formed in a bowl shape with a plurality of steel materials arranged on each side of the rectangular parallelepiped, and the cage is assembled in the inner space surrounded by these steel materials and transported in the state of being stored in the gantry as it is Is done.

  However, the gantry as described above has a very heavy structure in order to obtain a robust structure that can withstand transportation. For this reason, it is very difficult work to place the gantry containing the car on the transport trailer carrier from the factory or to transfer the gantry transported to the site by the trailer from the trailer carrier to the installation entrance at the upper part of the hoistway. It was. In particular, when loading and unloading, it is necessary to change the posture of the gantry between the standing position and the laying position on the trailer platform or near the installation entrance of the hoistway, which further complicates the work. It was.

JP-A-6-219669

  The present invention has been made in view of the above-described circumstances, and provides an elevator car installation method that can reduce the work period but is not forced to handle a robust gantry. Objective.

  The present invention for achieving the above-described object is a car installation method in which an elevator car is installed in a structure having a hoistway, the hoistway installation process for providing the hoistway in the structure, and the car A car assembling step, a lifting device installation step for installing the lifting device for inserting the car into the hoistway at the construction site of the structure, and inserting the assembled car into the hoistway A car installation process, wherein the hoistway installation process and the car assembly process are performed in parallel, and the car assembly process is performed at a construction site of the structure, and the car assembly In the process, after the temporary guide rail is arranged on the ground of the construction site, the car is assembled based on the temporary guide rail, and the car installation process is performed after the car assembly process is completed. By pair By lifting the rose said car, disconnect from the temporary guide rails, from installation inlet of the hoistway portion, down hanging the cage to be inserted into the hoistway.

  According to the elevator car installation method of the present invention, it is possible to shorten the construction period, but it is possible to obtain an advantage that it is not necessary to be forced to handle a robust gantry.

It is the schematic which shows the elevator with which embodiment of this invention is applied from a side. It is the figure seen from the front side along the arrow II regarding the elevator of FIG. It is a figure which shows one process of the cage | basket | car installation method which concerns on this Embodiment. It is a figure which shows the next process of FIG. 3 in the cage | basket | car installation method which concerns on this Embodiment. It is a side view of the car in a car assembly process. FIG. 6 is a front view of a car as seen from an arrow VI in FIG. 5. FIG. 7 is a plan view of the car as seen from the arrow VII in FIG. 5. It is a figure which shows the next process of FIG. 4 in the cage | basket | car installation method which concerns on this Embodiment. It is a figure which shows the next process of FIG. 8 in the cage | basket | car installation method which concerns on this Embodiment.

  Embodiments of an elevator car installation method according to the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.

  FIG. 1 is a diagram schematically showing the elevator from the side, and FIG. 2 is a diagram of the elevator of FIG. 1 as viewed from the front side along the arrow II.

  The elevator 1 includes a hoistway 5 that extends vertically in the structure 3. In the hoistway 5, a pair of left and right car guide rails 7 and weight guide rails 9 are erected. A car 11 is provided between the pair of car guide rails 7 so as to be movable up and down. The car 11 is guided in the ascending / descending direction by the car guide rail 7. Similarly, a counterweight 13 is provided between the pair of weight guide rails 9 so as to be able to move up and down, and the counterweight 13 is guided by the weight guide rails 9 in the up-and-down direction. A main rope 15 such as a rope is passed between the car 11 and the counterweight 13, and the car 11 and the counterweight 13 move up and down in opposite directions.

  A pit 17 is formed in the lower part of the hoistway 5. The pit 17 is provided with a well-known shock absorber (not shown). In addition, the hoistway 5 is provided with various well-known components (not shown) such as a driving sheave, a hoist, a deflector, and a governor in addition to the above. In the structure 3, a landing 19 on each floor is provided on the front side of the hoistway 5 (left side in FIG. 1), and a user gets on and off the car 11 from the landing 19 on each floor.

  Next, a car installation method in the elevator configured as described above will be described. The elevator car installation method according to the present embodiment includes at least a hoistway installation process, a car assembly process, a lifting device installation process, and a car installation process.

  The hoistway installation process is a process of forming the hoistway 5 of the elevator 1 with respect to the structure 3. The car assembly process is a process of finally assembling the car 11 of the elevator 1 accommodated in the hoistway 5.

  The car assembling process in the present invention is performed on the ground of the construction site (the vicinity of the structure) of the target structure 3, in other words, performed in the factory away from the construction site or, conversely, in the hoistway 5. is not. More preferably, the car assembling process is performed in a construction site in an area where a lifting device described later can reach directly.

  The car assembly process is performed in parallel with the hoistway installation process. Here, “performed in parallel” means that both processes are started at the same time or there is a period in which they are performed at least partially overlapping.

  The hoistway installation process and the car assembly process will be described based on FIGS. As FIG. 3 shows, the space which comprises the hoistway 5 is provided in the structure 3 in the hoistway installation process. Further, a car guide rail 7 is provided in the hoistway 5 as shown in FIG. On the other hand, a car assembly process is performed on the ground 21 a of the construction site 21.

  In the car assembly process, first, the temporary guide rail 23 is arranged on the ground 21 a of the construction site 21, and then the car 11 is assembled based on the temporary guide rail 23. This will be described in more detail with reference to FIGS. FIG. 5 is a side view of the car in the car assembling process. 6 and 7 are respectively a front view and a plan view of the car as seen from the arrows VI and VII in FIG.

  As shown in FIGS. 5 to 7, in the car assembling process, first, the cradle 25 is placed on the ground 21 a of the construction site 21. In the present embodiment, the cradle 25 is configured such that a steel material has an H shape in plan view. The cradle 25 includes a pair of left and right end members 25a and a central member 25b. The pair of end members 25a extend in the front-rear direction (vertical direction in FIG. 7). The center member 25b extends in the left-right direction so as to connect the middle portions in the front-rear direction of the pair of end members 25a.

  A pair of left and right temporary guide rails 23 is erected on the middle part in the front-rear direction of the pair of end members 25a or on both left and right ends of the end member 25a. These temporary guide rails 23 are supported by a turnbuckle 27 (not shown in FIGS. 6 and 7). A pair of left and right support members 29 are provided between the pair of left and right temporary guide rails 23. The support member 29 supports the floor of the car 11 in the car assembling process, and may include, for example, a jack mechanism or a configuration like a shock absorber provided in the regular pit 17.

  The car 11 is assembled by viewing the temporary guide rail 23 with the regular car guide rail 7. Therefore, the car 11 is supported by the temporary guide rail 23 via the guide shoe 31 and is assembled so as to slide along the temporary guide rail 23 when an emergency stop (not shown) is removed.

  As shown in FIG. 8, a lifting device 33 provided in the lifting device installation step is prepared at the construction site 21. A crane is usually used as the lifting device 33. Moreover, the implementation timing of the lifting device installation process is not particularly limited, and may be before or after the start of the hoistway installation process or the car assembly process, or after the start, but before the start of the car installation process described later It is only necessary that arrangement of 33 is completed. In this connection, the lifting device 33 does not have to be used only for the installation of the car, and may be used as a device for moving various materials.

  After the lifting device installation process, the hoistway installation process, and the car assembly process are completed, a car installation process is performed. As shown in FIG. 8, first, the car 11 assembled in the car assembling process is lifted by the lifting device 33, and the car 11 is pulled out from the temporary guide rail 23. Then, the car 11 is transferred by the lifting device 33 to the installation entrance at the upper part of the hoistway 5 (for example, the roof of the structure 3).

  Further, as shown in FIG. 9, the car 11 is suspended by the lifting device 33 so as to be inserted into the hoistway 5 from the installation entrance. More specifically, the car 11 is lowered so that the guide shoe 31 engages with the car guide rail 7, and the car 11 is installed in the hoistway 5 so as to be able to move up and down. As described above, the elevator car is installed.

  According to the elevator car installation method according to the present embodiment described above, the car assembly work is first carried out at the site next to the hoistway in parallel with the hoistway installation work. Thus, the assembled car can be installed in the hoistway without delay. That is, the assembly work of the car is started without waiting for completion of the hoistway, and the construction period can be shortened. In addition, since the car assembly process is performed at the construction site, it is not necessary to transport the assembled car from the factory or the like to the site by a trailer or the like. As described above, the present embodiment has a beneficial advantage that it is possible to shorten the work period, but it is not necessary to handle a robust gantry handling work that has been unavoidable until now.

  Further, since transportation from the factory to the site is not required, a robust and extremely heavy gantry is not required. That is, the temporary guide rails illustrated in FIGS. 5 to 7 are supported, and the cage is supported. There is also an advantage that it is sufficient if there is a cradle that can be stored.

  In the present embodiment, the car is assembled not at a narrow hoistway in the work space but at a construction site with less space restrictions, so that the car can be easily assembled and the work can be performed efficiently. In addition, since the assembly work is performed on the ground of the construction site, there is no risk of parts falling like when assembling the car in the hoistway, and it is easy to concentrate on the assembly, so that the work can be done efficiently Can do.

  Also, performing assembly work on the ground of the construction site results in eliminating the need to transport the parts to a high place once, such as when assembling a car in a hoistway. Therefore, it is possible to save labor and cost for securing a device for conveying parts to a high place, management related to the device, and the like.

  Furthermore, if the car is assembled in the construction site in an area where the lifting device can reach, the assembled car can be lifted directly by the lifting device and inserted into the hoistway as it is. . Therefore, coupled with the fact that it is not necessary to carry the assembled car as described above, it is possible to further improve the work efficiency and omit the moving device. At that time, if the temporary guide rail is oriented vertically, it will not be forced to lay or stand the car until assembly is completed, and it will not be forced to change the position in the hoistway. It is possible to shift to the insertion into the work area and further improve the work efficiency.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  1 elevator, 3 structure, 5 hoistway, 11 car, 21 construction site, 23 temporary guide rail, 33 lifting device.

Claims (2)

A car installation method for installing an elevator car on a structure having a hoistway,
A hoistway installation step of providing the hoistway in the structure;
A car assembly process for assembling the car;
A lifting device for installing the lifting device for inserting the car into the hoistway at a construction site of the structure; and
A car installation step of inserting the assembled car into the hoistway,
The hoistway installation process and the car assembly process are performed in parallel,
The car assembly process is performed at the construction site of the structure,
In the car assembly process, after the temporary guide rail is arranged on the ground of the construction site, the car is assembled based on the temporary guide rail,
In the car installation process, after the car assembly process is completed, the assembled car is lifted by the lifting device, removed from the temporary guide rail, and inserted into the hoistway from the installation entrance at the upper part of the hoistway. An elevator car installation method for suspending the car as described above.   The elevator car installation method according to claim 1, wherein the car assembling step is performed in an area where the lifting device reaches on the ground of the construction site.

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